ICD AdSCSI ST host adapter software update 8/19/91
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This file documents the ICD AdSCSI ST host adapter software.
These utilities are packaged with all ICD ST Hard Drive Systems
and ICD ST host adapters and WILL ONLY WORK WITH AN ICD HOST
ADAPTER in your system.  They are all Copyright 1987-1991 by ICD,
Inc., and are provided for our ICD ST host adapter customers
only. 

Companies using this software with their products must include an
ICD ST host adapter as part of that product or they will be in
violation of United States and/or International Copyright Laws!

If you have any questions:

     ICD, Inc.
     1220 Rock Street
     Rockford, IL  61101-1437

     Voice:  (815) 968-2228
     BBS:    (815) 968-2229
     FAX:    (815) 968-6888
     Orders: (800) 373-7700   NO TECH SUPPORT on this number!!!

The ICD BBS always has the latest versions of the ICD ST host
adapter software, as well as various handy utilities, etc., all
yours for the downloading.  Our BBS has a US Robotics 9600 baud
HST modem and is usually up 24 hours a day.  Support and updated
files are also available on GEnie (ICDINC) and CompuServe
(76004,1600).

Suggestion: make a printed copy of this file for future 
reference.

+---------------------------------------------------------------+

This documentation only includes changes made to the ICD AdSCSI
ST host adapter software since the latest manual was printed.  
The latest manual has the number 36-90 in the lower-right corner
of the back cover.  If you would like to receive the latest 
manual and the latest software on disk, send $15 to ICD (Canadian
customers send US $20 and overseas customers send US $25).

+---------------------------------------------------------------+

Changes to the ICD AdSCSI ST host adapter software since the
latest manual was printed:

-    The TIMESET function is now incorporated in ICDBOOT.  This means
     that the hard drive clock will automatically be read and the
     system clock be set upon bootup, when using a host adapter with
     real-time clock.  This option may be disabled in the "Config" 
     option of HDUTIL for those choosing to use their Mega internal 
     clock or other clock device.  It is no longer necessary to have
     ICDTIME or TIMESET in your AUTO folder to set the system clock.
     You must still run ICDTIME to install the clock handler in memory
     before using the Control Panel or other software to reset the
     clock in the ICD host adapter.

-    ICDBOOT now recognizes hard disks formatted and partitioned
     with MS-DOS on a PC.  This should simplify the transfer of
     files between PCs and STs using removable media (SyQuest, 
     etc.) much easier.  NOTE: although reading and writing 
     MS-DOS partitions is supported, most of the ICD utilities 
     will not work with MS-DOS partitions.

-    Previous versions of ICDBOOT would always change the screen 
     to medium resolution when booting with a color monitor.  
     The resolution is now configurable with HDUTIL, allowing 
     you to boot in any ST/TT graphics mode available on your 
     system.  As of ICDBOOT 5.5.0, you can also choose to completely
     skip any resolution change; this will be useful for those with
     1024x768 color monitors which require special driver software
     to load before any other program.

-    ICDBOOT will now work without an ICD host adapter connected
     to the system.  An ICD host adapter is still required for
     the use of the utilities such as HDUTIL, ICDFMT, etc.
     
     This feature was added so that people using an ICD tape
     backup system on an Atari TT or Mega STE can continue to
     boot their internal HD even with the tape drive 
     disconnected.  This is also for users of the Atari Stacy who
     do not wish to carry an external hard drive with them.
     
     When booting without an ICD host adapter present, the ICD
     caches will be disabled, resulting in performance similar to
     the hard disk drivers from other companies.
     
     IMPORTANT NOTE: even with this new capability, this software
     is only for use by people who OWN an ICD host adapter.
     
-    This release now fully supports the Atari TT SCSI port as
     well as the ACSI port.  For the most part, hard drives 
     connected to the SCSI port of the TT can be treated just
     like drives connected to the ICD AdSCSI host adapter.  The
     primary difference is that the devices connected to the ICD
     AdSCSI are numbered 0-7 and the devices connected to the TT
     SCSI port are devices 8-15.  Since the TT itself is a SCSI
     device, it uses one of the device numbers.  The ICD software
     sets the TT to SCSI ID #7 (device 15), so that number is not
     available for any other devices.

     Drive letters are assigned to devices attached to the SCSI 
     port before those attached to the ACSI/DMA port.

     Keep in mind that an ICD AdSCSI host adapter is still 
     required to use the ICD host adapter software on the TT.

-    Due to changes in the boot sector, you should run HDUTIL to 
     install the latest boot sector and ICDBOOT.SYS.  On the TT, 
     the boot sector that gets installed is different on a drive 
     connected to the SCSI port than one connected to the ACSI 
     port.

-    COPYFIX.PRG has been updated to fix a bug which caused 
     compatibility problems with several applications.  There 
     should no longer be any problems with it.

-    All programs have been tested and modified as necessary to 
     present a proper display in the Atari TT's new graphics 
     modes.  Be advised, though, that any programs which didn't 
     work in the ST's low-resolution also will not work in TT 
     low-res (256 color mode).

-    Several minor bugs have been fixed.  Because of this, it is 
     advisable that you always use the latest version of the ICD 
     AdSCSI ST host adapter software.

-    When using the ESC key to disable the booter options, only
     the caching gets disabled.  The TOS buffers are still 
     allocated so that BGM partitions can be accessed.  If you
     need the additional memory, use HDUTIL to disable the
     buffers and reboot.

-    Simple statistics on the cache effectiveness are maintained 
     and can be checked with CACHEHIT.TOS.

+---------------------------------------------------------------+
 
Changes to files on the distribution diskette: 
 
ADSCSI.CPX     version 1.x
     This is an extension for Atari's Extensible Control Panel
     (XCONTROL).  See the file ADSCSI.TXT for additional
     information.
     
BOOTFIX.TOS    version 2.x
     This has been updated to support drives attached to the TT
     SCSI port as well as the ACSI\DMA port.

     There is no need to run this program if you have formatted
     with ICDFMT.PRG version 4.62 or later as this bit is
     automatically set when formatting or partitioning.

                       *** CAUTION ***

     After running BOOTFIX be sure you NEVER format a Seagate 
     drive using a version of ICDFMT.PRG older than 4.62.  Doing
     so will cause you to get four bombs on power up.  The reason
     for this is not known.  If you do this the solution is to
     turn off the offending hard disk, run ICDFMT.PRG version
     4.62 or later and let it go through to the 'No SCSI devices 
     found' dialog box.  Then power on your hard drive and after
     letting it initialize, click on RESCAN.  Then go through a
     format or partition operation and all should be OK again.

     This caution does not apply to Quantum Drives.

CACHEHIT.TOS   version 1.x
     This program displays the effectiveness of the caches.  It 
     displays the percentage of reads which were satisfied by 
     the cache, and the percentage of writes which updated 
     entries already in the cache.  This can be used to 
     determine what cache settings are the most efficient for 
     your system.

     It's important to note that this only gives statistics for 
     the cache buffers, and not the TOS buffers.  The TOS 
     buffers are maintained by the operating system and can't be 
     checked.  The ICD AdSCSI ST host adapter manual explains 
     the TOS buffers in more detail.

CACHEOFF.PRG   version 1.x
CACHEON.PRG    version 1.x
     These programs are used to enable and disable the write
     cache function of ICDBOOT.  Users of the Supercharger PC
     emulator must turn off the write cache before running the
     Supercharger intialization program or the Supercharger will 
     NOT be able to write to the hard disk.

     Turning the cache off this way does not reduce memory usage.

CFGCBOOT.PRG   version 2.x
     This program configures COLDBOOT.PRG to skip selected 
     ACSI/DMA devices.  See section on COLDBOOT.PRG (below) for 
     additional documentation.

CLDEMO.PRG     version 4.xx
     This is a demo version of our CLEANUP ST program.  It will
     locate bad sectors, corrupted files/directories, bad FAT 
     tables, collisions between multiple files, bad directory
     names, invalid allocation chains, and other defects.  The
     working version of CLEANUP ST allows you to correct these
     defects and recover as many files as possible.

     The working version of the program is available direct from
     ICD for US $29.95.  Send Attn: CLST Order.  Orders outside
     the USA need to add US $5 for shipping and handling charges.

     See CLDEMO.DOC for more complete documentation.
 
COLDBOOT.PRG   version 2.x
     This has been updated to support devices attached to the TT
     SCSI port as well as the ACSI/DMA port.

     Versions 1.30 and later of ICD COLDBOOT.PRG are 
     configurable to allow skipping of the ACSI/DMA ID of the
     Supercharger from Talon Technologies.  To configure COLDBOOT
     run CFGCBOOT and specify the ID(s) you wish to skip when
     doing a coldboot.  The Supercharger is normally shipped as
     ID 3.  This should only be necessary for those users who do 
     not have Quantum, Seagate, or other drives which autoboot
     upon power-up, and who are also using the Supercharger.

COPYFIX.PRG    version 1.5
     This has been updated to fix a bug which caused 
     compatibility problems with several applications.  There 
     should no longer be any problems with it.

DESKTOP.PRG    version 3.xx
     This program (formerly a desk accessory) has been updated 
     to be compatible the Atari TT and all TOS versions.  See 
     DESKTOP.DOC for a more complete explanation of changes since
     previous versions.

HDPARK.TOS     version 2.x
     This has been updated to support the TT SCSI port.
     This program replaces MAKEPARK.PRG.  See HDPARK.DOC for 
     complete documentation.

HDPARTS.TOS    version 2.xx
     This program displays various statistics about each hard 
     drive partition on the system.  For the most part, this 
     information will only be of use to people who have some 
     understanding of disk structures.

HDUTIL.PRG     version 4.x
     There is now an option to set the bootup screen resolution 
     in ICDBOOT (it previously defaulted to medium resolution on 
     a color monitor).

     This has been updated to support the TT SCSI port.  This
     affects several functions:

     -    Setting a hard disk for auto-booting will result in 
          either TT-SCSI boot sectors or ACSI/DMA boot sectors
          being written to the drive based on which port the
          drive is connected to.  If you ever move the drive to 
          the other port, you will have to reinstall the boot 
          sector with HDUTIL.
     -    It is possible to disable scanning of any of the 16
          devices.  The devic